Rear knuckle of articulating arm



FIG. 1 is a bottom, right perspective view of a rear knuckle ofarticulating arm;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a rear perspective view thereof; and,

FIG. 5 is a bottom, right perspective view thereof shown in anenvironment of use.

The broken lines illustrating the articulating arm in FIGS. 1-5 areenvironment that form no part of the claimed design, while the remainingbroken lines in FIGS. 1-5 illustrate portions of the rear knuckle ofarticulating arm that form no part of the claimed design.

CLAIM The ornamental design for a rear knuckle of articulating arm, asshown and described.